30270749 has 2 divisors, whose sum is σ = 30270750. Its totient is φ = 30270748.

The previous prime is 30270733. The next prime is 30270797. The reversal of 30270749 is 94707203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25351225 + 4919524 = 5035^2 + 2218^2 .

It is a cyclic number.

It is not a de Polignac number, because 30270749 - 2⁴ = 30270733 is a prime.

It is equal to p_1873643 and since 30270749 and 1873643 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30270949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15135374 + 15135375.

It is an arithmetic number, because the mean of its divisors is an integer number (15135375).

Almost surely, 2^30270749 is an apocalyptic number.

It is an amenable number.

30270749 is a deficient number, since it is larger than the sum of its proper divisors (1).

30270749 is an equidigital number, since it uses as much as digits as its factorization.

30270749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 30270749 is about 5501.8859493814. The cubic root of 30270749 is about 311.6552082239.

The spelling of 30270749 in words is "thirty million, two hundred seventy thousand, seven hundred forty-nine".